The paddles resemble the c1849 Passamaquoddy Ocean style paddle noted by Adney in Fig 72.
Fig 72: Adney and Chappelle
Bark Canoes and Skin Boats of North America
Adney noted the original was carved in cedar. I myself tried this design out of a plank of yellow poplar years ago. You can read that paddle carving journey (in 4 parts) starting here. Despite being shut down for the Covid19 pandemic, the curator of the museum was able to get back in touch with me regarding the origins of the paddles and the canoe. They were built by famed builder Henri Vallaincourt of Greenville, New Hampshire.